A friend is offering me an "old version" BEGI rising rate regulator brand new in box as his came with a kit and he is going full standalone for $160.00 with shipping.

I went and did some research on the Bellengineering.net and found an article about there new design and how is more stable and whatever.

"Over the years, we have found that the stainless valve shims were very sensitive to fuel contaminants, and also displayed excessive wear under extreme conditions. The current design works well, however in typical Corky Bell fashion; he had to find a way to make it better. Through a hundred trials and errors, he has come up with a new design that makes using valve shims obsolete. The new valve design will provide a virtually indestructible regulator. It also creates a much more stable fuel pressure curve, and to top it off it eliminates the occasional various noises.

The new design allows adjustment for increased fuel pressure range, at the onset of that increase, thus providing stable pressure under the most demanding of conditions. The new regulator design has been tested to 450 psi, without failure or calibration changes. BEGi will be updating all the FMU'S with the new valve design. The new valve design will begin shipping immediately." from BEGI website.

Is there a real difference between the two or is it just marketing hype?

My plan is to run no more than 20 psi if maximum on my setup. At the present time I am at 10psi tuning with a Innovate wideband.

Any help, feedback would be appreciated.